scholarly journals Graft Copolymerization of Vinyl Acetate onto Irradiated Polypropylene in Monomer Emulsion

1962 ◽  
Vol 19 (206) ◽  
pp. 337-343 ◽  
Author(s):  
Sadao Torikai ◽  
Eiji Mukoyama
1996 ◽  
Vol 61 (2) ◽  
pp. 259-267 ◽  
Author(s):  
Bhupendra N. Misra ◽  
G. S. Chauhan ◽  
Inderjeet Kaur

Radiation-induced graft copolymerization of vinyl acetate (VAC) and isopropenyl acetate (PAC) onto isotactic polypropylene (IPP) has been studied. The percentage of grafting was calculated for various reaction parameters, and the optimum conditions for attaining the maximum percentage of grafting were determined. Maximal achieved extents of grafting are 39% and 29% for VAC and PAC, respectively. The reactivity of the two monomers with respect to grafting is discussed.


2013 ◽  
Vol 33 (6) ◽  
pp. 521-526 ◽  
Author(s):  
Baohan Qu ◽  
Hongchun Li ◽  
Yongsheng Niu

Abstract The graft copolymerization of poly(vinyl acetate) [poly(VAc)] onto starch was studied using the KMnO4-H2SO4 redox system. The grafting parameters are favored by changing the concentration of KMnO4, the concentration of acid, the temperature, the time, and the concentration of monomer. A maximum graft yield of 38.3% was obtained at optimum conditions: KMnO4 concentration=3.0×10-3 mol/l, concentration of acid=1.5×10-2 mol/l, temperature=40°C, time=3 h, and concentration of monomer=1 mol/l. The grafting of poly(VAc) onto starch was confirmed by the IR spectra of pure sago starch, poly(VAc), and poly(VAc) grafted starch. Both swelling power and solubility increased with the increase in temperature. Graft copolymerization increased swelling power and reduced solubility. This material may have use as an application as a biodegradable plastic.


2013 ◽  
Vol 46 ◽  
pp. 191-196 ◽  
Author(s):  
Satvinder S. Panesar ◽  
Sinto Jacob ◽  
Manjusri Misra ◽  
Amar K. Mohanty

1997 ◽  
Vol 49 (2) ◽  
pp. 275-278 ◽  
Author(s):  
Fang Yue-E ◽  
Lu Xiao Bing ◽  
Wang Shan Zhi ◽  
Zhao Xia ◽  
Fang Wang

1992 ◽  
Vol 28 (8) ◽  
pp. 969-973 ◽  
Author(s):  
Maria Jesus Fernandez ◽  
M.D. Fernandez ◽  
G.M. Guzman ◽  
R. Montiel ◽  
V.M. Castaño

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